We Are Ophthalmology LTD We Care About Your Health

Over the years, Ophthalmology LTD's name has become associated with the highest quality of comprehensive medical and surgical eye care. Highly trained ophthalmologists David West, Bryan Hammer, Eric Thomas, Dustin Dierks, Ryan Geraets, Michael Eide, Elizabeth Atchison, Elise In’t Veld, and Karen Dickes, as well as experienced optometrists Andrea McCann, Emily Walters, and Tyler Vermeer combine their considerable expertise to give each and every patient the best possible care. Ophthalmology LTD delivers treatment for cataracts, glaucoma, diabetic eye disease, as well as cornea transplants, oculoplastic surgery, retina surgery, vitreoretinal surgery, and pediatric eye care in Sioux Falls.

The Finest Eye Specialists in the Tri-State Area

Ophthalmology LTD brings the finest eye specialists in South Dakota to satellite offices in the tri-state area: Luverne, Pipestone, Worthington and Windom in Minnesota, Rock Valley, Sibley, and Sioux Center in Iowa, as well as Dell Rapids, Madison, Mitchell, and Yankton in South Dakota.


In 1968, Ophthalmology LTD revolutionized eye care by taking a comprehensive approach, bringing patients a full range of vision specialties under one roof. Today, eye care teams across the nation are now mimicking the strategy we have spent more than 50 years perfecting. It is because of this experience and our genuine dedication to our patients that our team is widely considered the finest, most comprehensive group of sub-specialty eye surgeons in the tri-state Siouxland area.

Our Services

Our ophthalmologists have expertise in a wide range of specialties and work as a team to meet your eye care needs.


Not only is cataract treatment the most frequently performed surgery in the United States, it is also one of the most successful. More than 99% of patients who undergo cataract removal rank their vision as significantly improved. Drs. Osmundson, Hammer, Dierks, Eide, In't Veld, and West perform this highly effective procedure.

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Early detection and treatment is the key to preventing vision loss with Glaucoma. More than three million Americans have glaucoma, but only half are actually aware that this "silent thief" is slowly and without warning stealing away their vision, sometimes without any noticeable symptoms. Drs. Osmundson and In't Veld  at Ophthalmology LTD specializes in the diagnosis and treatment of glaucoma.

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Children should have a yearly comprehensive eye exam along with their parents. Many vision problems can be detected early and treated before they become detrimental to a child's development, learning abilities, and every day function. Dr. West of Ophthalmology LTD has 22 years of experience in the evaluation and treatment of children's vision.

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The retina functions much like the film in a camera, and when film is damaged, so is the picture. Our retinal specialists Drs. Geraets, Thomas, and Atchison  offer comprehensive retinal exams and treatment to protect against diseases such as diabetic retinopathy that can damage your retina and vision.

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If a window pane is distorted or marred by imperfections, it is difficult to see out through it clearly. Your cornea is your eye’s window. To keep it clear or to restore it to its proper state, Dr. Eide of Ophthalmology LTD uses his specialty training in corneal diseases to treat dry eye, keratoconus, and other conditions that can cause corneal imperfections.

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When your eyelids, eye sockets, or tear ducts malfunction, or a tumor threatens your vision, Ophthalmology LTD oculoplastic surgeon Dr. Hammer can help. Specializing in procedures that restore clear vision as well as a more youthful appearance, Dr. Hammer treats and manages a wide variety of ocular conditions.

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We are a team of passionate professionals with
caring for patients in South Dakota, Minnesota, & Iowa.

Have a look around, then call, request an appointment online, or come by to learn more about how our team of eye experts can help you and your family.

  • Joe S.

    I recently received care at Ophthalmology LTD, and I was impressed and grateful for all that was done during my time with them. Right off the bat the staff were welcoming and I felt they did a great job walking... read more

  • John R.

    Dr. Dierks was on time, courteous, professional, friendly and interested in my care. j

  • David C.

    Friendly professional timely service along with comfortable environment.

  • Lynn F.

    I am always taken care of by Dr. McCann and staff. They are so friendly and so kind. I would always highly recommend all of them.

  • Mona W.

    Everyone at Ophthalmology Ltd was friendly & professional. All my questions were answered and I was given written information summarizing the details of my upcoming procedure. My husband and I left the clinic feeling confident that we know what... read more

  • Nicholas B.

    Dr. Thomas makes every visit very easy and very reassuring. He’s the best to see for your eye needs

  • Pam S.

    A great place to go! Dr West is super!
    The staff is friendly and helpful.

  • Autrie K.

    Very professional great service

  • Timothy P.

    Dr. Vermeer was very thorough and explained my results in terms I could understand.

  • Monica F.

    The staff at Ophthalmology LTD has taken care of my eyes for over 30 years. The staff are all very caring and have a way of putting you at ease. Thank you for taking good care of me!

  • Marilyn V.

    We have always had a great experience with Ophthalmology LTD ~ Dr. West. He has been seeing our daughter since she was 5 weeks old and now she is 25! He has always treated her with respect!!

  • Janet H.

    Everyone was very professional yet caring! They explained procedures well and answered all my questions.

  • Bonnie C.

    Dr Vermeer was very thorough. He took his time to make sure everything was ok with my eye buckle and retena.

  • Diane C.

    I am always treated with respect and friend-liness. All questions are answered and no one hurries me. I feel that my eyes are having the best care!

  • Steve B.

    Very satisfied with the professionalism of ophthalmology limited. This was the third time I saw a doctor Atchison and she did an amazing job.

  • Greg M.

    Excellent service and care. Very satisfied.

  • Gerald J.

    Extra care and professionalism experienced throughout my examination and treatments. Very satisfied and pleased!

  • JT C.

    Laxer of right eye in hopes of ending glaucoma. Dr Dickes was professional, informative and kind. Making for a good experience.

  • Marsha H.

    Hi Dr. McCann, was nice visiting with you! I always feel good coming to Opthamology Ltd because you always make me feel Ike you really care about your patients & take time to listen! Thank you!

  • Linda D.

    Very satisfied. Dr. Explained everything thoroughly. Very professional.

  • Gary V.

    Very friendly well informed doctor

  • Junior V.

    Dr Elise is the best. She takes time to explain things to you in a way that you can understand, I am amazed at her knowledge and how thorough she is. I highly recommend Dr Elise and Opthalmology Ltd to... read more

  • Brenda B.

    Great customer service! I never have to sit in the waiting area very long. I am a long-time patient for a reason.

  • Brandon R.

    Couldn’t ask for better doctors!

  • Carla V.

    I checked in got helped right away. Staff were very friendly nice smiles. I even brought my child with and nothing but smiles for her. The doctor was nice and jumped right in to find out what’s wrong with my... read more

  • Peggy B.

    Efficient, answer your questions, very skilled, friendly

  • wc p.

    I had an issue with blurred vision after a reaction to some unknown irritant over the weekend. I called the office and they worked me in on the same day. Check-in was quick and I was called promptly to an... read more

  • Sonia R.

    Very good, it didn't take up to much time.

  • Sharon H.

    My appointment went so smoothly that I was finished a lot sooner than I expected. Everyone was very pleasant and put me at ease. A very professional place!

  • Rebecca L.

    Dr Gerard’s war very informative, thorough and professional.

  • Kevin S.

    Dr. Emily Walters is an awesome Ophthalmologist! I've been very impressed with her care and compassion for her patients the last few years I've been her patient!!

  • JR F.

    The doctors and staff are very knowledgeable and responsive to the needs of the patients.

  • Scott W.

    Really liked the friendly staff and the swiftness and professionalism of my entire visit

  • Marilyn E.

    I highly recommend this clinic for its professionalism and respect, from reception to direct medical care.

  • Jay J.

    They are very professional and really care about your eyes. I would recommend them to anyone

  • Sharyl G.

    Everyone there is very friendly and professional. They are also very through, they explain things so you'll understand just what's going on.

  • Paul S.

    Amazing experience in every aspect. Everything went perfectly except the process of trying to let them know that it was incredible. I'm in the hospitality industry , and we do countless surveys and such.. They need to be very clear... read more

  • Sam D.

    My wife and I have been patient’s for a number of years. Our care has always been first rate. We both recently had cataract surgery by Dr Hammer. He and the staff were caring and professional. They are the best.... read more

  • Jeff W.

    Everyone was friendly, courteous and professional. I liked Dr. Hammer. He explained in detail everything about my issue and the procedure to correct it. He also took the time the get to know me on a personal... read more

  • Peggy H.

    Each representative was knowledgeable, polite, and explained everything throughly

  • Kandy S.

    Friendly staff and great doctors.

  • Jane J.

    All of the doctors, nurses, and associates are wonderfully helpful. We trust them and appreciate their friendly professionalism.

  • Donna F.

    They treated me great! I was nervous at first but when I was done with my appointment I was informed what was wrong and I understood what I needed to do.

  • Larry A.

    Very impressed with the thorough exam process…not rushed like so other offices, And a summary discussion too.

  • Elaine B.

    This was a very good experience. Everyone at Opthomology Limited is so kind. They take such good care of their patients. It was good meeting Dr Karen Dickes. She was very friendly & explained everything she was talking... read more

  • Kim C.

    I was impressed with the organization and patient flow at Opthalmology LTD. I never waited more than 5 minutes to be called for the next event in my visit. Every person I talked with was cheerful and genuinely interested in... read more

  • Marissa I.

    Dr. Eide was very respectful and thorough will my evaluation. Very kind and talked me through everything with a smile. 10/10 recommend him!

  • Larry G.

    Dr. Eide is wonderfully courteous, caring, took time to thoroughly answer all my questions and concerns. He puts you at ease right away and made the appointment a very pleasant experience.

  • Scott A.

    It was pleasant and professional

  • Dennis W.

    the people are fantastic and very knowledgable.